Post by kxj5906 on Oct 19, 2013 17:43:48 GMT -5
Hi everyone,
I am trying to fix this oil leak coming from near my engine and valve cover. My scooter is a Jonway YYT150-3. It only has 630 miles on it. Since it was new, I used dino regular non-synthetic oil. 2 days ago, I changed my oil and used semi-synthetic oil. As I finished changing the oil, I was curious to see what a valve adjustment looked like. So I removed the body panel and the seat and unscrewed the bolts and saw the inside of the GY6 engine. I was fascinated. After looking at it for a bit, I screwed the valve cover back on. After reassembling the body panels and screwing the seat back on, I hopped on and traveled a bit. As I approached a store, I put the scooter on its main stand, and to my surprise, oil was dripping slowly near the engine/valve cover. I quickly hurried back home to try to fix this problem.
After doing careful research, I have come to suspect that the valve cover gasket somehow got warped when tightening the valve cover back on and now oil is dripping when I ride. When I let the scooter sit still, no oil will leak, but when I go for a ride, oil will slowly drip out. I researched and saw that RTV silicone gasket maker could be a viable option. So today, I applied RTV silicone gasket maker between the valve body and the valve cover. I let it dry for a few hours, and it looked pretty dry. I decided to take it for a test ride, and it was still leaking oil on the underside of the engine. The places that I put the silicone gasket seal did not seem to leak, but the oil is leaking elsewhere. I am wondering where exactly its leaking from. It can't possibly be anywhere else but between the valve cover, since I didn't mess around with anything else except the valve cover.
So, my conclusion is to get a replacement valve cover gasket. Once I install that, and (hopefully) fix the problem, I will post again and let you all know what worked to fix this oil leak. The oil slowly drips from underneath the engine when I looked underneath.
I have contacted the parts/service guys and they should be sending me a replacement valve cover gasket in about 1 week.
Any advice or similar issues? Where else could the oil leak be coming from? I checked all my fuel lines and other lines and did not seem to see any oil dripping. Pictures would be helpful.
Below is the image of a perfectly new valve cover gasket. The second image is the picture of my valve cover gasket, which looks smooshed in.
Below is what mine looks like
![]()
I am trying to fix this oil leak coming from near my engine and valve cover. My scooter is a Jonway YYT150-3. It only has 630 miles on it. Since it was new, I used dino regular non-synthetic oil. 2 days ago, I changed my oil and used semi-synthetic oil. As I finished changing the oil, I was curious to see what a valve adjustment looked like. So I removed the body panel and the seat and unscrewed the bolts and saw the inside of the GY6 engine. I was fascinated. After looking at it for a bit, I screwed the valve cover back on. After reassembling the body panels and screwing the seat back on, I hopped on and traveled a bit. As I approached a store, I put the scooter on its main stand, and to my surprise, oil was dripping slowly near the engine/valve cover. I quickly hurried back home to try to fix this problem.
After doing careful research, I have come to suspect that the valve cover gasket somehow got warped when tightening the valve cover back on and now oil is dripping when I ride. When I let the scooter sit still, no oil will leak, but when I go for a ride, oil will slowly drip out. I researched and saw that RTV silicone gasket maker could be a viable option. So today, I applied RTV silicone gasket maker between the valve body and the valve cover. I let it dry for a few hours, and it looked pretty dry. I decided to take it for a test ride, and it was still leaking oil on the underside of the engine. The places that I put the silicone gasket seal did not seem to leak, but the oil is leaking elsewhere. I am wondering where exactly its leaking from. It can't possibly be anywhere else but between the valve cover, since I didn't mess around with anything else except the valve cover.
So, my conclusion is to get a replacement valve cover gasket. Once I install that, and (hopefully) fix the problem, I will post again and let you all know what worked to fix this oil leak. The oil slowly drips from underneath the engine when I looked underneath.
I have contacted the parts/service guys and they should be sending me a replacement valve cover gasket in about 1 week.
Any advice or similar issues? Where else could the oil leak be coming from? I checked all my fuel lines and other lines and did not seem to see any oil dripping. Pictures would be helpful.
Below is the image of a perfectly new valve cover gasket. The second image is the picture of my valve cover gasket, which looks smooshed in.
Below is what mine looks like
..BAD TO THE BONE..
% sure that the oil leak is just from a squished gasket. Once I get the part and install it, it should be fixed. I'll get the part in about a week and I'll let you guys know then. Thanks also for the tip about not tightening the bolts to hard
